.Dryfoos, J. G. (1990). Adolescents at risk: Prevalence and prevention. Oxford University Press.
Style de citation Chicago (17e éd.).Dryfoos, Joy G. Adolescents at Risk: Prevalence and Prevention. New York: Oxford University Press, 1990.
Style de citation MLA (9e éd.).Dryfoos, Joy G. Adolescents at Risk: Prevalence and Prevention. Oxford University Press, 1990.